A selfie of host Ellen DeGeneres and stars including Meryl Streep, Jennifer Lawrence and Bradley Cooper taken during the 86th Academy Awards ceremony became the most shared photo ever on Twitter. (Bradley Cooper/ Twitter)

The term #selfie spiked to almost 1.2 million mentions on Twitter on March 2 after Oscar host Ellen DeGeneres posted the most retweeted photo in history. The President, Pope and Oprah have all taken selfies. The word was even named Oxford Dictionaries’ 2013 word of the year. Now companies and charities are taking notice. On March 21, Cancer Research UK tweeted that they’d raised more than $3 million through a #nomakeupselfie campaign, even though the charity didn't start the trend. Unilever’s Dove brand entered a short called “Selfie” into the 2014 Sundance Film Festival. And now people are tweeting selfies of themselves caught up in news events. See for yourself in this photo gallery — or, better yet, selfie gallery.